I'm using Ubuntu 14.04 unstable, and I have the same problem with my HP LaserJet 1020.
IIRC it worked a couple of weeks ago (on Ubuntu 14.04 unstable), but I could just be forgetful. It certainly worked on Ubuntu 13.10. I have tried two USB cables, on various working USB ports on my computer.
hplip 3.14.3-0ubuntu1, cups 1.7.1-5ubuntu9
Interestingly: sometimes "lsusb" stalls for minutes before _not_ showing "Bus 002 Device 036: ID 03f0:2b17 Hewlett-Packard LaserJet 1020". The effect happens in hp-setup, too: the probe sometimes lasts several minutes. I've seen this several times, but I don't know how to reproduce it. (Maybe by disconnecting and reconnecting the USB cable without power-cycling the printer?) Right now, the device is showing up in "lsusb" and my strace result is practically identical to Kuznetsov's.
I'm using Ubuntu 14.04 unstable, and I have the same problem with my HP LaserJet 1020.
IIRC it worked a couple of weeks ago (on Ubuntu 14.04 unstable), but I could just be forgetful. It certainly worked on Ubuntu 13.10. I have tried two USB cables, on various working USB ports on my computer.
hplip 3.14.3-0ubuntu1, cups 1.7.1-5ubuntu9
Interestingly: sometimes "lsusb" stalls for minutes before _not_ showing "Bus 002 Device 036: ID 03f0:2b17 Hewlett-Packard LaserJet 1020". The effect happens in hp-setup, too: the probe sometimes lasts several minutes. I've seen this several times, but I don't know how to reproduce it. (Maybe by disconnecting and reconnecting the USB cable without power-cycling the printer?) Right now, the device is showing up in "lsusb" and my strace result is practically identical to Kuznetsov's.
I'll cross-post this to Ubuntu's launchpad. There, it's bug 1296085: https:/ /bugs.launchpad .net/ubuntu/ +source/ cups/+bug/ 1296085